Should Vegans Take DHA to Preserve Brain Function?
I wonder if he's aware of this study below showing that a low fat diet is the equivalent of supplementing with long-chain O3 (EPA & DHA).
Consumption of a low fat diet alters fatty acid patterns in a manner similar to that observed with feeding of (n-3) long-chain fatty acids. This change is likely related to decreased competition for the enzymes of elongation and desaturation, with reduced total intake of 18:2(n-6) favoring elongation and desaturation of available (n-3) fatty acids.
Total Fat Intake Modifies Plasma Fatty Acid Composition in Humans